<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>北大青鸟宣传片</title>
	</head>
	<body>
		<video controls>
			<source src="video/video.avi"></source>
			<source src="video/video.mp4"></source>
			你的浏览器不支持video
		</video>
		<audio controls>
			<source src="audio/大海.mp3"></source>
			你的浏览器不支持audio
		</audio>
	</body>
</html>
